Update SDK to 6.0.100-preview.3.21160.5 (#30810)

* Update SDK to 6.0.100-preview.3.21160.5
* Fix up linker args

Author: captainsafia

global.json

@@ -1,9 +1,9 @@
 {
   "sdk": {
-    "version": "6.0.100-preview.3.21126.8"
+    "version": "6.0.100-preview.3.21160.5"
   },
   "tools": {
-    "dotnet": "6.0.100-preview.3.21126.8",
+    "dotnet": "6.0.100-preview.3.21160.5",
     "runtimes": {
       "dotnet/x64": [
         "2.1.25",

src/Components/WebAssembly/testassets/WasmLinkerTest/WasmLinkerTest.csproj

@@ -19,9 +19,7 @@
     <PropertyGroup>
       <LibrariesTrimmedArtifactsPath>$(TargetDir)wasm-linked\</LibrariesTrimmedArtifactsPath>
       <!-- Link all assemblies -->
-      <ILLinkArgs>$(ILLinkArgs) -c link</ILLinkArgs>
-      <ILLinkArgs>$(ILLinkArgs) -u link</ILLinkArgs>
-      <ILLinkArgs>$(ILLinkArgs) -b true</ILLinkArgs>
+      <ILLinkArgs>$(ILLinkArgs) --action link</ILLinkArgs>
       <ILLinkArgs Condition="'$(GenerateLinkerWarningSuppressions)' == 'true'">$(ILLinkArgs) --generate-warning-suppressions xml</ILLinkArgs>
     </PropertyGroup>
     <ItemGroup>
@@ -50,6 +48,7 @@
         OutputDirectory="$(LibrariesTrimmedArtifactsPath)"
         ReferenceAssemblyPaths="@(RuntimePackAsset);@(ReferencePath->WithMetadataValue('ExternallyResolved', 'true'))"
         ExtraArgs="$(ILLinkArgs)"
+        TrimMode="link"
         ToolExe="$(_DotNetHostFileName)"
         ToolPath="$(_DotNetHostDirectory)" />